A combined water pan

Abstract

This invention discloses a combined water receiving tray, comprising a tray body, a ring-shaped water receiving groove located within the tray body, a water pump located on the upper side of the tray body, a water pump pipe located on the water pump and extending vertically downward into the water receiving groove, and a level switch located on the inner wall of the water receiving groove and connected to the water pump. A filter screen covers the lower periphery of the water pump pipe. A waste box is located below the water pump pipe on the lower side of the tray body. A waste outlet communicating with the waste box is opened on the inner wall of the water receiving groove. A waste outlet inclined downwards towards the waste outlet is opened on the inner wall of the water receiving groove. A blocking plate for sealing the waste outlet is provided inside the waste box. A connecting column extending vertically upwards is provided at the center of the blocking plate. A lifting column is provided at the upper end of the connecting column. A suction branch pipe for the lifting column to be embedded is provided at the upper end of the water pump pipe. The filter screen covers filter the water entering the water pump pipe, thereby reducing the possibility of the water pump pipe being blocked by impurities.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to a combined water receiving tray. Background Technology

[0002] Ceiling-mounted air conditioners, also known as ceiling-mounted or recessed air conditioners, are essentially ceiling-mounted units. They offer decent performance, similar to wall-mounted units, but they save space and are more aesthetically pleasing.

[0003] The water collection tray of the ceiling unit is located above the air outlet and right next to the bottom of the evaporator. The water from the evaporator flows from top to bottom into the water collection tray, and then the water in the water collection tray is pumped out by the drain pump on the upper side of the water collection tray and discharged to the outside.

[0004] Currently, Chinese patent publication number CN215723615U, published on February 1, 2022, discloses a water receiving tray, a water receiving tray assembly, and a ceiling-mounted air conditioner. The water receiving tray is used to collect condensate from the evaporator of the ceiling-mounted air conditioner. It includes a water guide groove, the bottom of which is provided with a first groove for collecting condensate. A drain pump draws condensate from the first groove. The water receiving tray is also provided with a second groove, the bottom of which has a drain outlet. The bottom of the second groove is connected to the first groove at least at the bottom, and the bottom of the second groove is not higher than the bottom of the first groove.

[0005] The drip tray can discharge condensate or impurities using both a drain pump and a drain outlet; however, in actual use, water leakage often occurs inside the ceiling unit, partly because too many impurities in the drip tray can clog the pump's suction pipe. Summary of the Invention

[0006] The purpose of this invention is to provide a combined water receiving tray, which can help reduce the possibility of the water pump pipe being blocked by impurities.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a combined water receiving tray, including a tray body, a ring-shaped water receiving groove located inside the tray body, a water pump located on the upper side of the tray body, a water pumping pipe located on the water pump and extending vertically downward into the water receiving groove, and a liquid level switch located on the inner wall of the water receiving groove and connected to the water pump. The lower end of the water pumping pipe is wrapped with a filter screen. A waste box is provided on the lower side of the tray body below the water pumping pipe. A waste outlet communicating with the waste box is provided on the inner wall of the water receiving groove. A waste discharge slope inclined downward towards the waste outlet is provided on the inner wall of the water receiving groove and on the periphery of the waste outlet. A blocking plate for sealing the waste outlet is provided inside the waste box. A connecting column extending vertically upward is provided at the center of the blocking plate. A lifting column is provided at the upper end of the connecting column. A suction branch pipe for the lifting column to be embedded is provided at the upper end of the water pumping pipe.

[0008] By adopting the above technical solution, when the level switch senses that there is a lot of water in the water tank, the level switch can control the water pump to start, and a large suction force can be quickly formed in the water pumping pipe. Most of the suction force in the water pumping pipe is used to draw water from the water tank, while a small part of the suction force can act on the suction branch pipe. The suction branch pipe can draw the rising column inside upward, thereby causing the blockage plate to move up and block the sewage outlet. After a period of time, the water pumping pipe can stably draw water from the water tank and discharge it to the outside. At the same time, the filter screen can filter the water entering the water pumping pipe, thereby reducing the possibility of the water pumping pipe being blocked by impurities.

[0009] Once the water in the receiving tank has been completely pumped out, the water pump will stop working and the suction in the pumping pipe will cease. At this point, under its own gravity, the lifting column will move downwards, and the blockage plate will fall back into the waste box. The waste outlet will then be opened, and the impurities filtered by the filter screen will enter the waste outlet along the waste outlet under gravity. Finally, the impurities will be collected through the waste box, thus preventing the filter screen from being clogged by impurities. This allows the pumping pipe to efficiently and smoothly pump water from the receiving tank.

[0010] A further provision of the present invention is that: a baffle plate for separating the water receiving tank is provided at the position of the water pump pipe; a rotating shaft with its lower end rotatably connected to the inner wall of the water receiving tank is provided inside the water receiving tank and on the side of the water pump pipe away from the baffle plate; a plurality of rotating plates driven by water flow are provided around the rotating shaft; and a brush strip is provided on the side of the rotating plate away from the rotating shaft for abutting against the outer wall of the filter screen after rotating with the rotating plate.

[0011] By adopting the above technical solution, the annular water receiving trough is divided by a baffle plate, so that the position of the water pump pipe is at the end of the water receiving trough. At this time, under the suction of the water pump pipe, the water in the water receiving trough can flow rapidly along the annular water receiving trough towards the side of the water pump pipe. Then, the high-speed water flow can drive the rotating plate on the rotating shaft to rotate. The rotating plate can drive the brush strip to rotate. When the brush strip rotates, it can come into contact with the outer wall of the filter screen, thereby cleaning the impurities adhering to the surface of the filter screen. Finally, the surface of the filter screen can be further prevented from being blocked by impurities.

[0012] A further feature of the present invention is that a guide plate is provided on the inner wall of the water receiving tank near the rotating shaft.

[0013] By adopting the above technical solution, the guide plate can guide the water flow, which is conducive to the water flow accurately impacting the rotating plate, thereby stably driving the rotating plate to rotate.

[0014] A further provision of the present invention is that: the upper end of the filter screen is provided with a connecting sleeve that wraps around the periphery of the water pumping pipe, a limiting ring is provided on the inner wall of the periphery of the connecting sleeve, a fixing ring corresponding to the position of the connecting sleeve is provided on the periphery of the water pumping pipe, and an annular groove for the limiting ring to be inserted is provided on the outer wall of the periphery of the fixing ring.

[0015] By adopting the above technical solution, the filter screen cover uses the limiting ring on the inner wall of the connecting sleeve to be embedded in the annular groove on the fixing ring. At this time, the filter screen cover can be circumferentially rotated and axially fixed to the periphery of the water pump pipe. When the brush strips apply friction to the surface of the filter screen cover, the brush strips can drive the filter screen cover to rotate. Subsequently, the brush strips on multiple rotating plates can efficiently clean the outer wall of the periphery of the filter screen cover.

[0016] A further configuration of the present invention is that the drain outlet and the rotating shaft are located on opposite sides of the filter screen, and the force generated by the brush strips on the surface of the filter screen causes impurities on the surface of the filter screen to fall toward the drain outlet side.

[0017] By adopting the above technical solution, when the brush strip exerts force on the surface of the filter screen, the impurities on the surface of the filter screen are swept off to the side of the drain outlet. At this time, it is convenient for the falling impurities to flow into the drain outlet along the drain slope.

[0018] A further feature of the present invention is that the blocking plate is a cone shape with the opening facing downwards.

[0019] By adopting the above technical solution, the conical blocking plate can play a guiding role, allowing impurities to quickly flow into the waste box along the inclined outer wall of the blocking plate.

[0020] A further feature of the present invention is that a ring-shaped rodent-proof plate is provided on the periphery of the disc body.

[0021] By adopting the above technical solution, the rodent barrier is made of aluminum alloy, so it is not easily chewed or damaged by rats. At this time, the rodent barrier can protect the perimeter of the plate and reduce the possibility of water leakage in the water tank after the plate is chewed by rats.

[0022] A further feature of the present invention is that: a plurality of plug-in plates are provided on the inner wall of the periphery of the rodent-blocking plate, and a plurality of fixing plates corresponding to the positions of the plug-in plates are provided on the periphery of the disc body. The fixing plates are provided with plug-in slots for the plug-in plates to be embedded in, and the plug-in slots and the plug-in plates are interference-fitted.

[0023] By adopting the above technical solution, the rodent barrier is embedded in the insertion slot on the fixed plate using a plug plate. This allows for the detachable connection of the rodent barrier around the plate, which ultimately facilitates the replacement and disassembly of the rodent barrier.

[0024] A further feature of the present invention is that the bottom of the waste box is provided with a raised platform for supporting the blockage plate in the falling state.

[0025] By adopting the above technical solution, when the blockage plate falls, it can be supported on the raised platform, which facilitates the smooth flow of impurities falling around the blockage plate into the bottom of the waste box.

[0026] A further feature of the present invention is that a mounting ring is provided on the periphery of the waste box and fixed to the lower surface of the disc body by bolts.

[0027] By adopting the above technical solution, the waste box is fixed to the lower surface of the disc body using mounting ring bolts, thereby achieving a detachable connection between the waste box and the disc body. When a period of collection results in a large amount of impurities in the waste box, the waste box can be removed from the disc body, which facilitates the quick cleaning of the impurities collected in the waste box.

[0028] The beneficial effects of this invention are as follows: When the level switch senses that there is a lot of water in the water tank, the level switch can control the water pump to start, and a large suction force can be quickly formed in the water pumping pipe. Most of the suction force in the water pumping pipe is used to draw water from the water tank, while a small portion of the suction force acts on the suction branch pipe. Through the suction branch pipe, the rising column inside can be drawn upward, thereby causing the blocking plate to move up and block the sewage outlet. Subsequently, for a period of time, the water pumping pipe can stably draw water from the water tank and discharge it to the outside. At the same time, the filter screen can filter the water entering the water pumping pipe, thereby reducing the possibility of the water pumping pipe being blocked by impurities. Since the sewage outlet is blocked by the blocking plate during the operation of the water pumping pipe, the impurities collected in the sewage box cannot escape from the sewage box under the suction force of the water pumping pipe, which ultimately helps the sewage box to stably collect impurities.

[0029] Once the water in the receiving tank has been completely pumped out, the water pump will stop working and the suction in the pumping pipe will cease. At this point, the lifting column will move down under its own weight, and the blockage plate will fall back into the waste box. The blockage plate is supported on the raised platform, and the waste outlet can be opened. Since there is no suction from the pumping pipe, the impurities filtered by the filter screen will enter the waste outlet along the waste outlet under gravity. Finally, the impurities will be collected in the waste box, thus preventing the filter screen from being clogged by impurities. This allows the pumping pipe to efficiently and smoothly pump water from the receiving tank.

[0030] Simultaneously, under the suction of the water pipe, the water in the receiving tank can quickly flow towards the side of the water pipe along the annular receiving tank. Then, the high-speed water flow can drive the rotating plate on the rotating shaft to rotate. The rotating plate can drive the brush strip to rotate. When the brush strip rotates, it can abut against the outer wall of the filter screen, thereby driving the filter screen to rotate. During the rotation of the filter screen and the brush strip, the impurities adhering to the surface of the filter screen can be cleaned, and finally, the surface of the filter screen can be further prevented from being blocked by impurities. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the present invention, wherein the direction of water flow extraction in the annular water receiving tank is indicated by dashed lines and arrows.

[0033] Figure 2 This is a magnified view of a portion of the structure of the present invention located at the water pump pipe position;

[0034] Figure 3 This is a partial structural cross-sectional view of the present invention located at the water pumping pipe position. At this point, under the action of suction, the blocking plate moves up and seals the sewage outlet.

[0035] Figure 4 yes Figure 3 Enlarged view of section A in the middle;

[0036] Figure 5 This is a partial structural cross-sectional view of the present invention located at the water pump pipe position. At this point, after the suction is lost, the blockage plate moves down and is supported on the raised platform, while the sewage outlet is opened.

[0037] In the diagram, 1. Disc; 11. Water receiving trough; 12. Sewage outlet; 13. Sewage slope; 14. Baffle plate; 15. Guide plate; 16. Fixing plate; 161. Insertion groove; 2. Water pump; 21. Water pumping pipe; 211. Suction branch pipe; 212. Fixing ring; 213. Ring groove; 3. Liquid level switch; 4. Filter screen; 41. Connecting sleeve; 411. Limiting ring; 5. Sludge box; 51. Blocking plate; 52. Connecting column; 53. Lifting column; 54. Mounting ring; 55. Elevating platform; 6. Rotating shaft; 61. Rotating plate; 611. Brush strip; 7. Rat guard plate; 71. Insertion plate. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] A modular water receiving tray, as shown in the reference Figure 1 This type of combined water receiving tray includes a tray body 1, a water receiving trough 11, a water pump 2, a water pump pipe 21, and a level switch 3. The water receiving trough 11 is located inside the tray body 1 and is annular. The water pump 2 is located on the upper side of the tray body 1 and is fixed to the ceiling unit with bolts. The water pump pipe 21 is connected to the water inlet of the water pump 2, and the water outlet of the water pump 2 is connected to the outside through a pipe. The level switch 3 is bonded and fixed to the inner wall of the water receiving trough 11. The level switch 3 can detect the water level in the water receiving trough 11 and control the opening and closing of the water pump 2.

[0040] Reference Figure 1 The plate body 1 is also provided with a ring-shaped rodent-proof plate 7 on its periphery. The rodent-proof plate 7 is a prior art technology and is made of aluminum alloy. At the same time, multiple plug-in plates 71 are welded on the inner wall of the periphery of the rodent-proof plate 7, and multiple fixing plates 16 corresponding to the positions of the plug-in plates 71 are bonded to the periphery of the plate body 1. The fixing plates 16 have plug-in grooves 161 for the plug-in plates 71 to be inserted, and the plug-in grooves 161 and the plug-in plates 71 are interference fit. At this time, the water receiving tray can be composed of the plate body 1 and the rodent-proof plate 7, realizing the combined connection of the water receiving tray.

[0041] Reference Figure 2 , Figure 3 , Figure 4 The lower end of the water pumping pipe 21 is porous, which facilitates efficient water pumping. The lower end of the water pumping pipe 21 is wrapped with a filter screen cover 4, and the upper end of the filter screen cover 4 is integrally provided with a connecting sleeve 41 that wraps around the water pumping pipe 21. At the same time, a limit ring 411 is integrally provided on the inner wall of the connecting sleeve 41, and a fixing ring 212 corresponding to the position of the connecting sleeve 41 is integrally provided on the periphery of the water pumping pipe 21. The outer wall of the fixing ring 212 is provided with an annular groove 213 for the limit ring 411 to be inserted. At this time, the filter screen cover 4 can be circumferentially rotated and axially fixedly connected to the periphery of the water pumping pipe 21.

[0042] Reference Figure 2 , Figure 3 , Figure 5A waste box 5 is located below the drain pipe 21 on the lower side of the disc body 1. An integral mounting ring 54 is provided around the waste box 5. The mounting ring 54 is pressed against the lower surface of the disc body 1 by a rubber ring and is fixed to the lower surface of the disc body 1 by bolts, thus enabling a detachable connection of the waste box 5 to the lower side of the disc body 1. A waste outlet 12 communicating with the waste box 5 is provided on the inner wall of the water receiving trough 11. A waste discharge slope 13 is provided on the inner wall of the water receiving trough 11 around the waste outlet 12, and the waste discharge slope 13 slopes downwards towards the waste outlet 12. The waste box 5 also contains a sealant for blocking the waste discharge. The blockage plate 51 of the sewage outlet 12 is a cone-shaped structure with its opening facing downwards. A connecting column 52 extending vertically upwards is welded to the center of the blockage plate 51. A lifting column 53 is integrally provided at the upper end of the connecting column 52. A suction branch pipe 211 communicating with the inside of the suction pipe 21 is welded to the upper end of the suction pipe 21. The lifting column 53 can be embedded in the suction branch pipe 211. At the same time, a platform 55 is bonded to the bottom of the sewage box 5. The platform 55 can support the blockage plate 51 in the falling state. After the blockage plate 51 falls and is supported on the platform 55, the upper end of the lifting column 53 remains embedded in the suction branch pipe 211.

[0043] Reference Figure 1 , Figure 2 A baffle plate 14 is integrally installed at the location of the water receiving tank 11 and the water pump 21 to separate the water receiving tank 11. A rotating shaft 6 is installed inside the water receiving tank 11 on the side of the water pump 21 away from the baffle plate 14. The lower end of the rotating shaft 6 is rotatably connected to the inner wall of the water receiving tank 11. Multiple rotating plates 61 are welded to the circumference of the rotating shaft 6, and the rotating plates 61 are evenly spaced along the circumference of the rotating shaft 6. The rotating plates 61 can be driven by water flow to rotate around the rotating shaft 6. Brush strips 611 are adhered to the side of the rotating plates 61 away from the rotating shaft 6. The bristle strips 611 can be used to abut against the outer wall of the filter screen 4 after the rotating plate 61 rotates. At the same time, the friction between the bristle strips 611 and the filter screen 4 can also drive the filter screen 4 to rotate. The drain outlet 12 and the rotating shaft 6 are located on both sides of the filter screen 4. The force generated by the bristle strips 611 on the surface of the filter screen 4 causes the impurities on the surface of the filter screen 4 to fall towards the drain outlet 12. Meanwhile, a guide plate 15 is also bonded and fixed on the inner wall of the water tank 11 near the rotating shaft 6. The guide plate 15 is bent towards the rotating plate 61.

[0044] Principle: When the level switch 3 senses that there is a lot of water in the water tank 11, the level switch 3 can control the water pump 2 to start, and a large suction force can be quickly formed in the water pumping pipe 21. Most of the suction force in the water pumping pipe 21 is used to draw water from the water tank 11, while a small part of the suction force acts on the suction branch pipe 211. The suction branch pipe 211 draws upward the lifting column 53, thereby causing the blocking plate 51 to move upward and block the sewage outlet 12. After a period of time, the water pumping pipe 21 can stably draw water from the water tank 11 and discharge it to the outside. At the same time, the filter screen 4 can filter the water entering the water pumping pipe 21, thereby reducing the possibility of the water pumping pipe 21 being blocked by impurities. Since the sewage outlet 12 is blocked by the blocking plate 51 during the operation of the water pumping pipe 21, the impurities collected in the sewage box 5 cannot escape from the sewage box 5 under the suction force of the water pumping pipe 21, which ultimately helps the sewage box 5 to stably collect impurities.

[0045] Once the water in the water tank 11 has been completely pumped out, the water pump 2 will stop working and the suction in the water pipe 21 will no longer be generated. At this time, under its own gravity, the lifting column 53 will move down, and the blocking plate 51 will fall back into the waste box 5. The blocking plate 51 is supported on the raised platform 55. At this time, the waste outlet 12 can be opened. Since there is no suction from the water pipe 21, the impurities filtered by the filter screen 4 can enter the waste outlet 12 along the waste incline 13 under the action of gravity. Finally, the impurities can be collected by the waste box 5, thereby avoiding the situation where the surface of the filter screen 4 is blocked by impurities. This is conducive to the efficient and smooth pumping of water from the water tank 11 by the water pipe 21.

[0046] Simultaneously, under the suction of the water pipe 21, the water in the water receiving tank 11 can quickly flow towards the water pipe 21 along the annular water receiving tank 11. Then, the high-speed water flow can drive the rotating plate 61 on the rotating shaft 6 to rotate. The rotating plate 61 can drive the brush strip 611 to rotate. When the brush strip 611 rotates, it can abut against the outer wall of the filter screen 4, thereby driving the filter screen 4 to rotate. During the rotation of the filter screen 4 and the brush strip 611, the impurities adhering to the surface of the filter screen 4 can be cleaned, and finally, the surface of the filter screen 4 can be further prevented from being blocked by impurities.

Claims

1. A combined water receiving tray, comprising a tray body (1), a ring-shaped water receiving groove (11) located inside the tray body (1), a water pump (2) located on the upper side of the tray body (1), a water pumping pipe (21) located on the water pump (2) and extending vertically downward into the water receiving groove (11), and a liquid level switch (3) located on the inner wall of the water receiving groove (11) and connected to the water pump (2), characterized in that: The lower end of the water pipe (21) is surrounded by a filter screen (4). A waste box (5) is provided on the lower side of the disc (1) below the water pipe (21). A waste outlet (12) communicating with the waste box (5) is provided on the inner wall of the water receiving tank (11). A waste discharge slope (13) inclined downward toward the waste outlet (12) is provided on the inner wall of the water receiving tank (11) and on the periphery of the waste outlet (12). A blocking plate (51) for sealing the waste outlet (12) is provided in the waste box (5). A connecting column (52) extending vertically upward is provided at the center of the blocking plate (51). A lifting column (53) is provided at the upper end of the connecting column (52). The upper end of the pumping pipe (21) is provided with a suction branch pipe (211) for the lifting column (53) to be embedded; the water receiving tank (11) is provided with a baffle plate (14) for separating the water receiving tank (11) at the position of the pumping pipe (21); a rotating shaft (6) with its lower end rotatably connected to the inner wall of the water receiving tank (11) is provided inside the water receiving tank (11) and on the side of the pumping pipe (21) away from the baffle plate (14); a plurality of rotating plates (61) driven by water flow are provided around the rotating shaft (6); a brush strip (611) is provided on the side of the rotating plate (61) away from the rotating shaft (6) for abutting against the outer wall of the filter screen (4) after rotating with the rotating plate (61).

2. The combined water receiving tray according to claim 1, characterized in that: A guide plate (15) is provided on the inner wall of the water receiving tank (11) near the rotating shaft (6).

3. A combined water receiving tray according to claim 1, characterized in that: The upper end of the filter screen (4) is provided with a connecting sleeve (41) that wraps around the periphery of the water pumping pipe (21). A limiting ring (411) is provided on the inner wall of the periphery of the connecting sleeve (41). A fixing ring (212) corresponding to the position of the connecting sleeve (41) is provided on the periphery of the water pumping pipe (21). A ring groove (213) for the limiting ring (411) to be inserted is provided on the outer wall of the periphery of the fixing ring (212).

4. A combined water receiving tray according to claim 1, characterized in that: The drain outlet (12) and the rotating shaft (6) are located on both sides of the filter screen (4). The force generated by the bristle strip (611) on the surface of the filter screen (4) causes the impurities on the surface of the filter screen (4) to fall toward the drain outlet (12).

5. A combined water receiving tray according to claim 1, characterized in that: The blocking plate (51) is a cone shape with the opening facing downwards.

6. A combined water receiving tray according to claim 1, characterized in that: The plate (1) is provided with a ring-shaped rodent guard (7) on its periphery.

7. A combined water receiving tray according to claim 6, characterized in that: The rodent-blocking plate (7) has multiple plug-in plates (71) on its inner periphery. The plate body (1) has multiple fixing plates (16) corresponding to the positions of the plug-in plates (71) on its periphery. The fixing plates (16) have plug-in slots (161) for the plug-in plates (71) to be inserted into. The plug-in slots (161) and the plug-in plates (71) are interference-fitted.

8. A combined water receiving tray according to claim 1, characterized in that: The bottom of the waste box (5) is provided with a raised platform (55) for supporting the blocking plate (51) in the falling state.

9. A combined water receiving tray according to claim 1, characterized in that: The waste box (5) is provided with a mounting ring (54) that is fixed to the lower surface of the disc body (1) by bolts.

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